package com.heima.user.service.impl;

import com.aliyuncs.utils.StringUtils;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.user.dtos.LoginDto;
import com.heima.model.user.pojos.ApUser;
import com.heima.user.mapper.ApUserMapper;
import com.heima.user.service.ApUserService;
import com.heima.utils.common.AppJwtUtil;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.DigestUtils;

import java.util.HashMap;
import java.util.Map;

/**
 * @Author: Sword Goddess
 * @Date: 2021/10/10
 * @explain:
 */
@Service // 容器
@Transactional // 事务
@Slf4j // 日志
public class ApUserServiceImpl extends ServiceImpl<ApUserMapper, ApUser> implements ApUserService {


    /**
     * app用户登录
     *
     * @param dto 手机号和密码
     * @return null
     */
    @Override
    public ResponseResult login(LoginDto dto) {


        // 1.正常登录
        if (StringUtils.isNotEmpty(dto.getPhone()) && StringUtils.isNotEmpty(dto.getPassword())) {
            // 1.1 获取用户信息-手机号
            ApUser dbUser = getOne(Wrappers.<ApUser>lambdaQuery().eq(ApUser::getPhone, dto.getPhone()));
            if (dbUser == null) {
                return ResponseResult.errorResult(AppHttpCodeEnum.DATA_NOT_EXIST, "用户不存在");
            }
            // 1.2 对比密码
            String password = dto.getPassword();
            String salt = dbUser.getSalt();
            password = DigestUtils.md5DigestAsHex((password + salt).getBytes());
            if (!password.equals(dbUser.getPassword())) {
                return ResponseResult.errorResult(AppHttpCodeEnum.LOGIN_PASSWORD_ERROR);
            }
            // 1.3 生成token
            Map<String, Object> map = new HashMap<>();
            dbUser.setSalt("");
            dbUser.setPassword("");
            map.put("user", dbUser);
            map.put("token", AppJwtUtil.getToken(dbUser.getId().longValue()));
            return ResponseResult.okResult(map);
        } else {    // 2.游客登录
            Map<String, Object> map = new HashMap<>();
            map.put("token", AppJwtUtil.getToken(0L));
            return ResponseResult.okResult(map);
        }


    }
}
